import {z} from 'zod'

export type CreateApiMcpConnectorsArgs = {body: {projectId?: string | undefined, serverUrl?: string | undefined, transport?: ('streamable-http' | 'sse') | undefined, headers?: Array<{id: string, name: string, value: string}> | undefined, awsSigV4?: ({accessKeyId: string, secretAccessKey: string, sessionToken?: string | undefined, region: string}) | undefined, providerId: string, readOnly?: boolean | undefined}};

export type CreateApiMcpConnectorsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiMcpConnectorsResponse = z.object({connector: z.object({maskedHeaders: z.array(z.object({id: z.string(), name: z.string(), maskedValue: z.string()})).optional(), grantedScopes: z.array(z.string()).optional(), connectionStatus: z.object({state: z.enum(["connected", "needs_attention", "connecting", "not_connected"]), reasonCode: z.enum(["credentials_rejected", "permissions_missing", "configuration_invalid", "discovery_failed", "health_check_failed", "stream_failed", "recovery_required"]).nullable(), checkedAt: z.string().nullable(), verification: z.enum(["verified", "unverified"])}).optional(), recovery: z.object({action: z.enum(["reconnect", "update_credentials", "manage_installation", "manage_owner", "review_setup"]).nullable(), canCheck: z.boolean(), canDisconnect: z.boolean(), target: z.object({kind: z.enum(["integration", "connected_account", "mcp_connector", "log_source", "sandbox_cli"]), resourceId: z.string(), providerId: z.string(), scope: z.object({kind: z.enum(["user", "organization", "project"]), id: z.string()})}).optional()}).optional(), connectionId: z.string(), connectionKey: z.string(), providerId: z.string(), displayName: z.string(), source: z.enum(["preset", "custom"]), installStatus: z.enum(["configured", "authorizing", "connected", "error"]), authMode: z.enum(["none", "headers", "oauth", "aws-sigv4"]), transport: z.enum(["streamable-http", "sse"]), serverUrl: z.string(), readOnly: z.boolean(), management: z.object({mode: z.enum(["user", "system"]), managedBy: z.object({type: z.literal("integration"), id: z.string().min(1), displayName: z.string().min(1), iconKey: z.string().min(1)}).nullable(), capabilities: z.object({canRename: z.boolean(), canEditCredentials: z.boolean(), canSetReadOnly: z.boolean(), canConfigureTools: z.boolean(), canDisconnect: z.boolean()})}), enabledToolCount: z.number().int().gte(0).lte(9007199254740991), connectedAt: z.string().nullable(), createdAt: z.string(), updatedAt: z.string()})});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Create an MCP connector
 * 
 * POST /mcp-connectors
 */
export const createApiMcpConnectors = async (args: CreateApiMcpConnectorsArgs, options?: CreateApiMcpConnectorsOptions) => {
const {baseUrl = "https://api.sazabi.com/v1", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

const url = `${baseUrl.replace(/\/+$/, '')}/mcp-connectors${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiMcpConnectorsResponse, await res.json())
};